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#2
johnliu19832010-01-13 08:57
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花了3个小时对下面三列数据进行曲面拟合，但还是有问题，往哪位好心大哥帮一下小弟，万分感谢：
x y z
30000 0.1 26.089
40000 0.1 27.296
50000 0.1 28.674
60000 0.1 29.62
70000 0.1 30.683
80000 0.1 31.822
90000 0.1 33.085
100000 0.1 34.368
150000 0.1 39.658
200000 0.1 45.41
300000 0.1 55.944
400000 0.1 66.674
30000 0.2 40.601
40000 0.2 43.397
50000 0.2 45.556
60000 0.2 47.886
70000 0.2 50.016
80000 0.2 52.333
90000 0.2 54.723
100000 0.2 56.695
150000 0.2 67.77
200000 0.2 78.863
300000 0.2 101.39
400000 0.2 123.55
30000 0.3 59.612
40000 0.3 63.042
50000 0.3 67.501
60000 0.3 70.822
70000 0.3 74.365
80000 0.3 78.897
90000 0.3 82.267
100000 0.3 86.266
150000 0.3 104.91
200000 0.3 124.51
300000 0.3 160.11
400000 0.3 199
30000 0.4 80.046
40000 0.4 87.172
50000 0.4 93.218
60000 0.4 99.428
70000 0.4 104.68
80000 0.4 109.99
90000 0.4 116.52
100000 0.4 120.83
150000 0.4 149.83
200000 0.4 177.85
300000 0.4 233.38
400000 0.4 291.03
30000 0.5 105.36
40000 0.5 115.55
50000 0.5 123.92
60000 0.5 128.98
70000 0.5 138.13
80000 0.5 146.72
90000 0.5 154.47
100000 0.5 162.1
150000 0.5 202.44
200000 0.5 240.11
300000 0.5 321.26
400000 0.5 397.77
30000 0.6 134.41
40000 0.6 146.25
50000 0.6 157.26
60000 0.6 168.79
70000 0.6 176.4
80000 0.6 187.69
90000 0.6 196.03
100000 0.6 208.16
150000 0.6 261.79
200000 0.6 313.34
300000 0.6 416.67
400000 0.6 522.86
30000 0.7 166.6
40000 0.7 180.1
50000 0.7 193.71
60000 0.7 205.08
70000 0.7 220.02
80000 0.7 234.76
90000 0.7 247.32
100000 0.7 261.51
150000 0.7 322.72
200000 0.7 391.68
300000 0.7 527.84
400000 0.7 660.82
30000 0.8 202.92
40000 0.8 221.02
50000 0.8 234.81
60000 0.8 253.16
70000 0.8 270.62
80000 0.8 285.13
90000 0.8 298.29
100000 0.8 317.75
150000 0.8 402.81
200000 0.8 479.84
300000 0.8 643.82
400000 0.8 815.89
30000 0.9 239.51
40000 0.9 263.99
50000 0.9 281.77
60000 0.9 302.44
70000 0.9 323.15
80000 0.9 342.97
90000 0.9 362.54
100000 0.9 384.27
150000 0.9 483.48
200000 0.9 579.86
300000 0.9 765.01
400000 0.9 989.15